Hose-coupling.



176,794,539. PATENTBD JULY 11,1905. J. D. OBRIEN.

HOSE COUPLING.

APPLICATION FILED NOV. 19. 1904.

WITNESSES: INVENTOH ATTORNEYS UNITED STATES Patented July 11, 1905.

PATENT OEEIcE.

JOHN OBRIEN, OF MULLAN, IDAHO, ASSIGNOR OF ONE-HALF TO JAMES J. MURPHY AND MICHAEL J. MAHER, OF BURKE, IDAHO.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 7941,5539, dated July 11, 1905.

Application filed November 19, 1904. Serial No. 233,465.

T 0 all whom it may concern.-

Be it known that 1, JOHN D. OBRIEN, a citizen of the United States, and a resident of Mullan, in the county of Shoshone and State of Idaho, have invented a new and Improved Hose-Coupling, of which the following is a full, clear, and exact description.

My invention relates to hose-couplings, and has for its principal objects the provision of a secure device of this character which may be readily connected and disconnected.

It consists in the various features hereinafter described and more particularly claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a central longitudinal section through a coupling embodying one form of my invention. Fig. 2 is a transverse section therethrough on the line 2 2 of Fig. 1. Fig. 3 shows a side elevation of the locking-ring. Fig. 1 is, an edge elevation thereof, parts being broken away. Fig. 5 is a perspective view of the packing-ring, and Fig. 6 shows a development of the locking-recess.

10 designates the female member of the coupling. which is provided with an enlarged portion 11, furnishing a socket. About the interior ofthe socket near its inner end is an annular packing-recess 12, and beyond this are shown two locking-recesses 13 13. These locking-recesses extend circumferentially of the socket and have at one extremity an opening 14: through its end, while at their opposite extremities they have an angular en.- largement 15, which extends toward the end of the socket. Within the recess 12 is situated an expansible packing-ring 16, preferably of rubber, which is shown as inclined or curved at 17, this inclination extending from the inner edge outwardly to leave a space between it and the outer wall of the recess. The locking-recesses have coacting with them projections 18 from a male member or tube 19, which also has an annular flange 20, provided with a rim 21, furnishing a depression on the side toward the socket. In this depression may be seated a spring 22, preferably consisting of a ring of some such eXpan'sible material as rubber, which has at one side a plurality of projections 23 and upon the opposite side a corresponding number of depressions 24, which are shown as situated opposite or in alinement with the projections, the yield of the projections into the depressions increasing the expansibility of the element. The lock ing-ring projects outside the recess, being adapted to coact with the end of the socket at its outer face. To the coupling members may be connected hose 25 in any suitable manner, or, if desired, one of them may be threaded at 26 to enable it to be made up with piping. The packing-ring being inserted in its recess in the socket and the locking-ring in the flange-depression, the tube projections are entered through the openings 14 of the lockingrecesses and then the members rotated so that the projections come opposite the recess-em largements 15, into which they are forced by the expansion of the locking-ring. When fluid under pressure is forced through the coupling, any which tends to pass between the tube and socket enters the packing-recess at the inclined face of the ring and presses this inwardly against the tube, thus making a fluid-tight joint, effectually preventing leakage. To uncouple the members, it is only necessary to press them toward one another and reverse the rotation just described, when they may be readily separated. It will be seen that this uncoupling cannot accidentally occur under pressure or twisting of the hose, since this is prevented by the maintenance of the projections and recesses in engagement by the expansion of the locking-ring. The packing-ring will stay in its place whether the members are coupled or uncoupled, but yet may be readily removed and renewed. Moreover, the device is extremely simple, having no threaded or similarly-movable elements to effect the closure.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A hose-coupling comprisingasockethaving about its interior'an annular packing-recess and also being provided with a locking recess opening through the end of the socket and having an enlargement extending toward taining the coaction of the socket and tube, and a spring interposed between the socket.

and tube and consisting of an expansible ring having at one side projections and at the opposite side depressions.

3. A hose-coupling comprising a socket and a coacting tube, one of said members being provided with an annular recess opposite the companion member, an expansible ring situated in the recess and having its side at the interior of the recess inclined, means for maintaining the coaction of the socket and tube, and a spring interposed between the socket and tube and consisting of an expansible ring having at one side projections and at the opposite side depressions in alinement with the projections.

4:. A hose-coupling comprising a socket and a coacting tube, a flange encircling the tube and being provided with a depression, an expansible ring seated in the depression and coacting with the adjacent end of the socket, and a packing-ring interposed between the socket and tube. v

In testimony WhereofI have signed my name to this specification in the presence of two subscribing witnesses.

JOHN D.- OBRIEN.

Witnesses:

J. H. MUNsoN, MARK CooNEY. 1 

